Finding the Third Proportional to 7,558.50 and 12,211.13

Step by Step Solution

1. Step 1: Write the proportion equation
   7,558.50 : 12,211.13 = 12,211.13 : x
2. Step 2: Convert to fraction form
   7,558.50/12,211.13 = 12,211.13/x
3. Step 3: Cross multiply
   7,558.50x = 12,211.13 × 12,211.13
4. Step 4: Simplify right side
   7,558.50x = 149,111,573.77
5. Step 5: Solve for x
   x = 149,111,573.77/7,558.50
6. Step 6: Final answer
   x = 19,727.67